Airtac ACQD Double Acting Compact Cylinder ACQD40X90
The AirTAC Airtac ACQD Double Acting Compact Cylinder ACQD40X90 is a genuine double-acting COMPACT (JIS) cylinder with a piston rod out BOTH ends — a Ø40mm bore and 90mm stroke. The twin rods resist rotation and give equal push and pull force, so it carries and guides a tool platform without a separate anti-rotation guide.
- BoreØ40 mm
- Stroke90 mm
- Port sizePT1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionBumper (both ends)
About the Airtac ACQD Double Acting Compact Cylinder ACQD40X90
The AirTAC ACQD40X90 is a double-acting JIS compact cylinder featuring twin rods that exit from both body ends. Because a rod occupies each chamber, the annular piston area is identical on extension and retraction. This geometry yields exactly equal push and pull forces, giving you 527.8N at 0.5 MPa and 738.9N at 0.7 MPa in either direction.
The dual-rod layout inherently resists torsion and extends the bearing guide length, allowing you to mount a small tool platform directly without needing an external anti-rotation guide. This 40mm bore unit uses a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. It features PT1/8 ports and a female M8x1.25 rod-end thread on its 16mm diameter rods.
Airtac ACQD Double Acting Compact Cylinder ACQD40X90 Technical Specifications
| Model | Airtac ACQD Double Acting Compact Cylinder ACQD40X90 |
|---|---|
| Series | ACQD JIS compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 90 mm |
| Acting type | Double acting, double rod |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACQD datasheet. A rod exits both ends, so both directions use the same annular area. Confirm against the product label before installation.
Theoretical Output Force (Ø40mm — equal both ways)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | 739 N |
| Max (@1.0 MPa) | 108 kgf | |
Because a rod occupies both chambers, push and pull forces are EQUAL — the annular area applies in each direction. Actual usable force is lower due to friction; size with a safety margin.
Model Code: Airtac ACQD Double Acting Compact Cylinder ACQD40X90
| ACQD | JIS compact double-acting DOUBLE-ROD cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×90 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch sensing (omit = none). |
| B | Male-thread piston rod (omit = female thread). |
Thread: PT standard (G / NPT available). The twin rods resist rotation and add guiding length. Related: ACQ (single rod), ACQJ (adjustable stroke), TACQ (guided).
Where the Airtac ACQD Double Acting Compact Cylinder ACQD40X90 Is Used
Twin-Guided Pusher
Drives a wide packaging pusher plate in a corrugated box folder. The dual rods absorb lateral torsion without an external guide rail, ensuring the plate stays perfectly parallel during the 90mm travel.
Symmetric Transfer Unit
Powers a pick-and-place transfer beam in electronics assembly. Equal push and pull forces keep the horizontal acceleration and deceleration profiles matched, preventing inertia-induced part slip.
Dual-Station Actuation
Actuates a dual-station clamping fixture on an automotive parts machining line. The second protruding rod end conveniently drives a mechanical flag to trip an external limit switch.
Is the Airtac ACQD Double Acting Compact Cylinder ACQD40X90 the Right Cylinder?
Generating 527.8N both ways at 0.5MPa, this 40mm bore sits neatly between the 32mm option (301.6N) and the 50mm option (824.6N). Choose the 32mm if your payload is lighter, or step up to the 50mm if you need higher thrust. If your application does not require symmetric thrust or a secondary rod end for a sensor flag, a standard single-rod ACQ cylinder might fit better. For pure linear guidance without rotation, a guided TACQ cylinder is ideal. Confirm your 90mm stroke, PT1/8 port thread, and female M8x1.25 rod thread when ordering.
Quick checklist
- ✓ Equal force both ways at your pressure
- ✓ Anti-rotation needed (twin rods)?
- ✓ Both rod ends usable for tooling?
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Both rods share the load — keep force concentric.
- check Twin rods resist rotation but avoid heavy side load.
- check Handle the C-clip carefully; seat it fully in its groove.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQD Double Acting Compact Cylinder ACQD40X90 FAQ
The cylinder provides equal push and pull forces of 527.8N at 0.5 MPa and 738.9N at 0.7 MPa, with a maximum force of 108 kgf at 1.0 MPa. Push and pull are equal because the twin rods create identical annular areas on both sides. The standard stroke limit for this 40mm bore is 100mm, operating pressure is 0.15-1.0 MPa, and this specific unit has a 90mm stroke.
The twin rods resist torsion and add guide length, eliminating the need for a separate anti-rotation guide. It uses fixed NBR elastomer bumpers at both ends for deceleration, not adjustable air cushions. Note that a plain ACQD does not hold its load if air pressure is lost; for fail-safe positioning, you must add an external rod lock or pilot-operated check valve.
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